Relentless rainfall that drenched Acadiana is forecast to fizzle out over the weekend, clearing the skies for a sunny start to next week.

The National Weather Service said thunderstorms are likely Friday, with a 60 percent chance during the day and a 30 percent chance at night. The likelihood jumps back to 50 percent for Saturday during the day but falls to 20 percent for that night. That percentage continues into Sunday, but Sunday night is forecast to be partly cloudy. Monday should be mostly sunny.

That projection should fall short of matching Thursday’s rainfall, which was torrential in spurts and ranged from 2 to 7 inches near Carencro and Arnaudville. The National Weather Service warns, however, that because the area has already received heavy rainfall, additional precipitation “is expected to quickly run off into low-lying areas,” like ditches and bayous.

The Vermilion River was at 12.5 feet by midafternoon Thursday, having fallen since Wednesday morning when it crested at 13.41 feet, slightly below the 14-foot moderate flooding level. The National Weather Service predicts it will fall back to 10 feet by Tuesday.

Rainfall continued to hinder motorists Thursday. According to the Lafayette Parish Sheriff’s Office, 17 streets in the unincorporated parts in the parish were barricaded until 2 p.m. More than 80 were listed as flooded or having standing water.

Lafayette Police spokesman Cpl. Paul Mouton said his department “did not have to deal with a large number of crashes” Thursday. At 4:30 a.m., an 81-year-old Lafayette man failed to stop for a stop sign on Carmel Drive and died as a result of his injuries several hours later, but Mouton said it will be up to the Traffic Section’s investigation to determine whether the accident was weather-related.

Other than that, the Lafayette Police Department did not close any roads, and a vehicle that stalled in rain water in an underpass was the only weather issue Mouton said police were called upon to assist.

Broussard Police Chief Brandon Decou said his town had no road closures and only one minor accident with no injuries on U.S. 90 near Morgan Street. In Carencro, all roads were open with only light flooding, Assistant Chief Dondi Hardin said. Youngsville city officials said water near City Hall on Fourth Street had subsided by Thursday afternoon.

On Wednesday, motorists on several major roadways across Lafayette Parish — notably Verot School Road, south of Ambassador Caffery Parkway and north of Fortune Road — were forced to either turn around or brave the waters.